Vase or Decanter?  This piece is hand blown and signed (the signature is below the donut hole close to the bottom).   On the cobalt blue is a band of iridescence too.  Beautiful no matter how it is used or displayed.  Measures 5" x 5" x 2 1/2" and weighs 8.5 ozs before packing.  Thank you for viewing this item.  Contact us with any questions.  Please visit our store, 2blindsquirrels, for more rare and eclectic finds.